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Finding the Fourth Proportional to 307,105.21, 460,547.65 and 117,618.85

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Solution

The fourth proportional to 307,105.21, 460,547.65 and 117,618.85 is: 176,386.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,105.21 : 460,547.65 = 117,618.85 : x
  2. Step 2: Convert to fraction form
    307,105.21/460,547.65 = 117,618.85/x
  3. Step 3: Cross multiply
    307,105.21x = 460,547.65 × 117,618.85
  4. Step 4: Simplify right side
    307,105.21x = 54,169,082,433.72
  5. Step 5: Solve for x
    x = 54,169,082,433.72/307,105.21
  6. Step 6: Final answer
    x = 176,386.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.